Java tutorial
/* * Copyright 2007-2014 the original author or authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.springbyexample.orm.hibernate3.annotation.dao; import java.util.Collection; import org.springbyexample.orm.hibernate3.annotation.bean.Person; import org.springframework.dao.DataAccessException; import org.springframework.orm.hibernate4.support.HibernateDaoSupport; import org.springframework.stereotype.Repository; import org.springframework.transaction.annotation.Propagation; import org.springframework.transaction.annotation.Transactional; /** * Person DAO implementation. * * @author David Winterfeldt * @author 20141231 - Karl Dinwiddie - Extend HibernateDaoSupport using this <a * href= * "http://www.zabada.com/tutorials/hibernate-and-jpa-with-spring-example" * >example</a>. */ @Repository @Transactional(readOnly = true) public class PersonDaoImpl extends HibernateDaoSupport implements PersonDao { /** * Find persons. */ @Override @SuppressWarnings("unchecked") public Collection<Person> findPersons() throws DataAccessException { return (Collection<Person>) getHibernateTemplate().find("from Person"); } /** * Find persons by last name. */ @Override @SuppressWarnings("unchecked") public Collection<Person> findPersonsByLastName(String lastName) throws DataAccessException { return (Collection<Person>) getHibernateTemplate().find("from Person p where p.lastName = ?", lastName); } /** * Saves person. */ @Override @Transactional(readOnly = false, propagation = Propagation.REQUIRES_NEW) public void save(Person person) { getHibernateTemplate().saveOrUpdate(person); } }